Apparatus for treating composition for ornamenting moldings



'(No Model.)

G. W. LANDON. APPARATUS FOR TREATING COMPOSITION FOR ORNAMENTING MOLDINGS.

No. 447,733. Patented Mar. 3,1891.

WITNESSES: T R:

BY 0AM AiMa/wv ATTORNEY.

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,NITED STATES ATE-NT FrrcE.

GEORGE TV. LANDON, OF RELAY, ASSIGNOR TO LANDON d: KENT, OF BALTIMORE, MARYLAND.

APPARATUS FOR TREATING COMPOSITION FOR ORNAMENTING MOLDINGS.

SPECIFICATION forming part of Letters Patent No. 447,733, dated March 3, 1891.

Application filed January 15, 1891. Serial No. 377,808. (No model.)

To all whom, it may concern.-

Be it known that I, GEORGE W. LANDON, a citizen of the United States, residing at Relay, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Apparatus for Treating Composition for Ornamenting Moldings, of which the following is a specification.

This invention relates to an apparatus for treating composition for ornamenting moldin gs and rendering such composition'soft and plastic by steam process, the object being to provide an apparatus which will do the work more satisfactorily and at the same time more rapidly than heretofore.

In the accompanying drawings, illustrating the invention, Figure l is a vertical section of the apparatus; Fig. 2, a top view, with the lid of the hopper open; Fig. 3, a detail view of a cut-off slide employed; 4-, a horizontal section on the line 4 4: of Fig. 1, showing the said slide in position, and Fig. 5 a cross-section through Fig. 4.

The apparatus is mounted in a frame A, which may be of any suitable form and construction, and the said apparatus comprises the parts which will now be enumerated and described.

The letter B designates a cylindrical receptacle or kettle supported on top of said frame and having a hinged lid 6, and at its base an inside annular shoulder Z), which rests upon the frame. The receptacle B has an extension B, in the form of an inverted cone, de-

pending from the inside edge of the shoulder b and constituting a steam-jacket, as will hereinafter appear. A cone-shaped hopper O is located below the receptacle B and supported on the inside shoulder b of the latter by means of an outwardly-extending annular flange 0 around its upper edge, which seats upon the said shoulder 72. It will be obvious that this hopperis incased in the steam-jacket B. The said hopper, however, projects below the said steam-jacket, and the latter has at its lower end an inwardly-projecting flange b which takes up around the said hopper and forms a tight joint therewith. It will be observed that a steam-space d is thus formed around the outside of the hopper O. The lower end of the latter is open, and around the same is formed an outwardly-extending.

flange e, having a dovetailed groove g on two opposite sides thereof. A cut-off slide H works over this flange c, and has guide-strips h, which fit the grooves g. This cut-off slide is worked by a lever I, fulcrumed at one end to the flange e, and pivotally connected at the middle to the slide by means of a lip e, projecting from the latter, and a pin Z, projecting from the said lip and engaging in a slot m in the said lever. It will be obvious that the lever can be worked to shift the slide in either direction. The slide H has an open ing 01, adapted to register with the lower open end of the hopper O, and thus it will be seen that the cut-off and opening of the said lower end of the hopper is accomplished by the manipulation of the lever I. A grating D, which is simply a perforated circular plate, covers the upper end of the hopper O, resting on the flange 0 of the latter and thus dividing the said hopper from the receptacle B and constituting the bottom of the latter. An upwardly-flared ring or annular plate D is placed in the said receptacle, with its upper edge fitting theside walls of the same and its lower edge resting on the grating D. It will be seen that the inside sloping surface of this ring or plate D will direct the matter in the receptacle B upon that portion of the grating which comes over the hopper G and prevent such matter from falling and remaining on the outside surface of the said grating, which rests on the flange 0 of the hopper.

A steam-inlet pipe E leads into the steamspace (Z around the hopper O, and the latter, a short distance above the entrance-point of this pipe, is provided with a series of perforations f, through which steam may enter the hopper. The purpose of locating the perforations f above the entrance-point of the steam-pipe is to prevent the latter from throwing water into the hopper with the steam, which is undesirable in treating the composition. These perforations are guarded on the inside of the hopper by a circular downwardly-inclined plate f, which is located above and overhangs them. A drain-pipe F leads off from the bottom of the steam-jacket B for the purpose of carrying off condensed steam from the spaced, between thelatter and the hopper C. An overflow-pipe F is also provided. A pair of crushing-rollers G are located below the outlet end of the hopper C and are inclosed in a case G, having a hopper G to direct matter between the said rollers. A suitable removable box J is placed below these rollers to receive the matter from them.

The apparatus is used as follows: The composition, which has previously been prepared and hardened in the form of cakes or blocks, is thrown into the receptacle 13 upon the grating D,and steam is admitted through the pipe E into the steam-jacket B. The steam enters the hopper C through the perforations f, strikes up against the under side of the grating D, passes through the same, and acts upon the bottom portion of the composition in the'receptacle 13. Thus the bottom portion of said com-position is first heated and softened until it drops through the interstices of the grating D into the hopper 0. As this takes place it will be seen that theremaining portion of the composition settles down upon the grate and the continued action of the steam softens it, as before explained. This continues until all of the composition has dropped shrough the grating into the hopper, where it forms a plastic mass. The advantage of the guard-plate f will here be apparent, as it prevents the composition from falling into the perforations f and closing them. The mass of matter in the hopper is further softened by the action of the steam in the said hopper, and that around the outside of the same in the space (1, until it has a consistency which will permit it to flow in a slow stream through the outlet end of the hopper. hen the mass has been brought to this state, the cutoif slide II is shifted to open said outlet end of the hopper, and allow the composition to flow through and into the hopper G and thence between the crushing-rollers Gr, which act to work the composition and pulverize any lumps that may remain in it. These rollers feed or direct the composition into the box .I, when it can be removed for use. The steam-jacket B prevents cooling and hardening of the outside portion of the composition while it is-in the hopper C.

It will be observed that by using the apparatus the hardened cakes or blocks of composition can be quickly reduced to the proper consistency for use, because it is not necesary to heat and soften the whole amount of matter at once, but simply to apply the steam underneath and heat the bot-tom portion of the composition, which falls through the grating and gives place to that above it. Furthermore, no watching is required, because as soon as softened the composition drops through the grating into the hopper and can be drawn therefrom at plcasu re.

Other advantages of my apparatus are that none of the oily ingredients of the composition are lost, as happens in the old system, where the cakes are placed on shelves in a chest or closet and steam is admitted all around them, when it has been found that the oil oozes out and flows over the shelves, and that the composition is thoroughly mixed as it drops through the grating into the hopper. Another point that might be mentioned is that sticks and like foreign matter will remain on the grating, and thus the composition is freed 'of this objectionable element.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an apparatus for treating composition to render it plastic, the combination of a receptacle for the composition in its primary state, a hopper below said receptacle, a grating between said hopper and receptacle, and means for admitting steam beneath the said grating to soften the bottom portion of the composition and cause it to drop through the grating into the said hopper, in the manner described.

2. In an apparatus for treating com position to render it plastic, the combination of a receptacle for the composition in its primary state, a hopper below said receptacle incased in a steam-jacket, a grating between said hopper and receptacle, and means for admitting steam to the said steam-jacket and hopper and beneath the said grating to soften the bottom portion of the composition and cause it to drop through the grating into the hopper, in the manner described.

3. In an apparatus for treating composition to render it plastic, the combination of a receptacle for the composition in its primary state, having an inside shoulder 12' at its base and a depending extension beyond said sh oulder constituting a steam-jacket, a hopper incased in said steanrjacket and supported by said shoulder, a grating over the top of said hopper and constituting the bottom of said primary receptacle, means for admitting steam to the steam-jacket and hopper, whereby the bottom portion of the composition is softened and drops through the grating into the hopper, and a cut-off slide at the lower end of the latter.

In testimony whereof I aflix my signature in the presence of two witnesses.

GEORGE W. LANDON.

Witnesses:

F. P. DAVIS, JNo. T. \Iannox. 

